original description
Meek, F. B. (1871). A preliminary list of fossils, collected by Dr. Hayden in Colorado, New Mexico and California, with brief desriptions of a few of the new species. <em>Proceedings of the American Philosophical Society held at Philadelphia.</em> 11: 425-431., available online at https://www.biodiversitylibrary.org/page/31205300
page(s): 430 [details]
basis of record
Henderson, J. (1935). Fossil non-marine Mollusca of North America. <em>Geological Society of America Special Papers.</em> 3: 1-313.
page(s): 76-77 [details] Available for editors [request]
additional source
Watters, G.T. (2001). The Evolution of the Unionacea in North America, and Its Implications for the Worldwide Fauna. In: Bauer, G.; Wächtler, K. (eds) Ecology and Evolution of the Freshwater Mussels Unionoida. Springer, Berlin, Heidelberg, pp. 281-307
page(s): 291 [details]
From editor or global species database
Type locality "Limestone-hill, Bear River", Wyoming, USA; Bear River Fm., Albian, Early Cretaceous [details]